The Center for Stingray Biology is a subsidiary of the Institute for Herpetological Research, a non-profit research organization founded in 1973 by Dr Richard Ross. The Center is dedicated to the study of all aspects of freshwater stingray husbandry. Current breeding projects include Potamotrygon leopoldi, P. henlei, the P14 Itaituba ray, P. falkneri, the black diamond morphs of P. leopoldi, and the pearl rays. Our work also includes studying the nutritional and water quality requirements of freshwater stingrays.